Q: 97 jeep wrangler 2.5 will start then shut down at idle

asked by on June 24, 2017

I have replaced the Idle Air Control and the Throttle Positioning Sensor.The engine will start and run at 1800 to 2000 rpms for about 10 to 20 sec and then drops to idle and shuts down completely. Sometimes the engine will knock a bit when it shut down.

Car starts and then dies Inspection $79.99 - $99.99 Get a Quote

Hi there. What you are describing is typical with a fuel restriction, typically caused by either a dirty fuel filter, failing fuel pump or clogged fuel injectors. It’s also common for a damaged mass air flow sensor, dirty air filter or EGR valve to cause air to fuel mixture problems that will make the mix too rich and stall the vehicle quickly. It’s probably best to have a professional mobile mechanic come to your location and complete a car starts then dies inspection to determine the precise source of this issue, so the right repairs will be made.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $65/hr

What others are asking

p0720 code will not stay gone

Hello. If the vehicle speed sensor has been replaced then the wiring to the sensor must be tested. If there is high resistance or any breaks in the wire then this will occur. I have also seen the signal gear...

Vehicle rumbling at low speeds

The rumbling at low speeds may be coming from a tire. The squealing noise at full turn is most likely a serpentine belt for your power steering pump that needs to be adjusted or replaced. The sagging rear suspension could...

Misfires 50-90 km stalling

It sounds like your ignition cylinder may have seized up. This can happen over time due to key tumblers inside the ignition cylinder wearing down and becoming unable to make the proper pattern when the key is inserted. You could be...

I started my car this morning and went to put it in drive. As soon as I took my foot off the brake to give gas it shut off completely.

This may be related to a couple of possible things. There is a component called an idle air control valve that monitors the air intake as it is mixed with fuel prior to being injected into the engine at low...

Jeep JK loss of power and engine light

Hello, thank you for writing in. With the vehicle stalling, my first instinct would be to check the charging system. That would be the battery and the alternator, their electrical wiring, and the terminals. When the system fails, all of...

Replaced all 4 rotors, calipers and brake pads. After changed everything and bled the brakes, still spongy 2010 Jeep Liberty

Hi there - you still have air somewhere in the brake system - perhaps in the ABS pump itself. I recommend a brake fluid flush service performed by a mobile, professional mechanic, such as one from YourMechanic, who will come...

Battery Light is on - 2007 Jeep Wrangler

Hello. The symptoms you describe (an illuminated battery light, along with flickering lights and stalling) are commonly caused by an issue with the alternator. The alternator is the component that generates power for the vehicle's various electrical systems, and can...

Oil pressure fluctuating and clicking noise from engine.

Hi there. The noise seems to be a lifter tap. Either a lifter is stuck or there is no oil to the lifter causing the rocker arm to tap and creating the noise you are hearing. Try putting one quart...

Check engine light

The random shake is probably due to the misfires that are implicit in the Codes that you have supplied. Diagnostic Trouble Code P0152 sets if the oxygen sensor (bank 2 sensor 1) is shorted, the wiring to the sensor is...

Related articles

2005 Jeep Wrangler vs. 2005 Chevrolet Blazer: Which One Should I Buy?
Sport SUVs are a class all of their own; these vehicles are meant for a fun drive through the woods and across the trail – but not necessarily to Grandma’s house! Think instead about going through the creek and through...
Are Switches Inside a Car Waterproof?
The The electrical switches inside your car control functions throughout your vehicle. You have switches that turn your headlights and radio on or off, adjust the volume of your sound system, open the power windows, and lock the power door...
Industry News for Automotive Techs: October 15-21
This week: home-brewed autonomous car, sneak peek at future Jeeps, scheming car hackers, Ram's off-road TRX concept, new turbo test kit from Lisle.